Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Operating activities
Net loss	$ (1,123)	$ (885)
Adjustments to reconcile net loss to net cash provided by/(used in) operating activities
Depreciation and amortization	915	995
Deferred tax expense	77	157
Stock-based compensation expense	229	236
Provision on uncollectible accounts	26	(25)
Gain from disposal of fixed assets	(5)	(1)
Changes in operating assets and liabilities
Accounts receivable	1,862	3,493
Inventories, net	1,813	(1,817)
Costs and estimated earnings in excess of billings on uncompleted contracts	1,858	(3,799)
Accounts payable	(227)	2,042
Accrued compensation and payroll taxes	1,279	(484)
Customers' deposits	(371)	533
Income taxes receivable and payable	(318)	(625)
Prepaid expenses and other current assets	(570)	(923)
Other assets and liabilities	(1,274)	(1,707)
Net cash provided by/(used in) operating activities	3,812	(7,108)
Investing activities
Capital expenditures	(3,227)	(400)
Proceeds from insurance recovery for property and equipment	5	0
Proceeds from sales of property and equipment	0	70
Net cash used in investing activities	(3,222)	(330)
Financing activities
Proceeds from revolving lines	28,333	16,870
Payments of debt on revolving lines	(25,527)	(11,566)
Payments of other debt	(61)	(86)
Decrease in drafts payable	(176)	(29)
Stock options exercised and taxes paid related to restricted shares vested	0	17
Net cash provided by financing activities	2,459	5,095
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(57)	471
Net increase/(decrease) in cash, cash equivalents and restricted cash	2,992	(1,872)
Cash, cash equivalents and restricted cash - beginning of period	6,793	9,771
Cash, cash equivalents and restricted cash - end of period	9,785	7,899
Supplemental cash flow information
Interest paid	521	350
Income taxes paid	939	1,138
Finance Lease Obligations [Member]
Financing activities
Payments of principal on finance obligation	(83)	(90)
Land and Buildings in Lebanon, Tennessee [Member]
Financing activities
Payments of principal on finance obligation	(27)	(21)
Unbilled Revenues [Member]
Changes in operating assets and liabilities
Unbilled accounts receivable	$ (359)	$ (4,298)